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02/08/2006 03:11:44 AM · #1 |
Hi,
I'm considering getting a close-up filter for my camera.
what should i take into consideration when choosing?
they DO have 55mm close-up filters, right?
What I'm trying to achieve with the filter is a shallower DOF when shooting potraits of people, usually standing about 2-3metres away. is close-up filter my solution?
thanks
Message edited by author 2006-02-08 03:12:17. |
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02/08/2006 03:14:50 AM · #2 |
A closeup filter will do 2 things:
1: help with making the DOF more shallow
2: shorten the camera to subject distance required
It may require you to be too close to your subject to get focus.
Another option to achieve the impression of a shallower DOF is to have the background as far away from your subject as possible and shoot with the largest aperture (smallest number). |
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02/08/2006 03:20:23 AM · #3 |
Originally posted by cpanaioti:
A closeup filter will do 2 things:
1: help with making the DOF more shallow
2: shorten the camera to subject distance required
3. It may require you to be too close to your subject to get focus.
4. Another option to achieve the impression of a shallower DOF is to have the background as far away from your subject as possible and shoot with the largest aperture (smallest number). |
1. that's what I read, but I cant confirm if it really suits what I'm trying to achieve. Does it only works for macro?
2. that's what I need, thanks
3. what if I'm standing 3-4m away from my subject, and the background (that I wan blurred) is 2m away from the subject? does it work with the filter?
4. This I know, but sometimes I have no way of standing far away. my camera only allows largest F3.2 :( |
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02/08/2006 03:27:43 AM · #4 |
I'm not sure that a close-up filter will help you in what you are wishing to achieve. The close-up filter helps your camera in focussing closer at the closest focussing distance on your camera. This also means that the camera is focussed closer throughout the range and you would most likely lose the ability to focus at infinity. The narrower DOF only comes when you are using the extreme close-up focussing ability i.e. in the macro range, where, I believe, the DOF is reliant on the magnification achieved.
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02/08/2006 03:28:20 AM · #5 |
I have closeup filters for my G3 but have only used them macro mode. I don't see why they wouldn't work in regular shooting modes.
Different closeup filters have different effects on camera to subject distance. Getting a set of filters would give you versatility like the Hoya +1, +2, +4 set, +1 having the least effect and +4 the most.You may be able to get some info from the manufacturer's site as to what distance you need to be to get focus. I have a feeling that 3 - 4 m is too far from the subject to get focus with even the +1 filter alone.
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02/08/2006 03:28:31 AM · #6 |
This was taken with close up filters. They add up to +10. Marumi brand. i have issues with DOF but I am sure it is something that i am doing wrong.
fly fly2 |
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02/08/2006 03:32:11 AM · #7 |
you can always use a center spot filter, as well.
Center Spot - Clear central area for dramatic focus, surrounded by ring of moderate diffusion to minimize distracting background detail.
Check them out here.
Message edited by author 2006-02-08 03:35:18. |
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02/08/2006 03:32:39 AM · #8 |
Originally posted by lentil:
This was taken with close up filters. They add up to +10. Marumi brand. i have issues with DOF but I am sure it is something that i am doing wrong.
fly fly2 |
The DOF will, indeed, be that narrow given the magnification.
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02/08/2006 03:33:53 AM · #9 |
Originally posted by AJAger:
Originally posted by lentil:
This was taken with close up filters. They add up to +10. Marumi brand. i have issues with DOF but I am sure it is something that i am doing wrong.
fly fly2 |
The DOF will, indeed, be that narrow given the magnification. |
well.. there you go :) maybe it wasnt my doing after all |
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02/08/2006 03:46:25 AM · #10 |
Originally posted by AJAger:
I'm not sure that a close-up filter will help you in what you are wishing to achieve. The close-up filter helps your camera in focussing closer at the closest focussing distance on your camera. This also means that the camera is focussed closer throughout the range and you would most likely lose the ability to focus at infinity. The narrower DOF only comes when you are using the extreme close-up focussing ability i.e. in the macro range, where, I believe, the DOF is reliant on the magnification achieved. |
i dont have an issue with focusing.
so a close-up filter is not what i should be looking for, right?
so is there anyway i can get a narrower DOF for shooting subjects about 3m away? |
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02/08/2006 03:49:19 AM · #11 |
Originally posted by crayon:
Originally posted by AJAger:
I'm not sure that a close-up filter will help you in what you are wishing to achieve. The close-up filter helps your camera in focussing closer at the closest focussing distance on your camera. This also means that the camera is focussed closer throughout the range and you would most likely lose the ability to focus at infinity. The narrower DOF only comes when you are using the extreme close-up focussing ability i.e. in the macro range, where, I believe, the DOF is reliant on the magnification achieved. |
i dont have an issue with focusing.
so a close-up filter is not what i should be looking for, right?
so is there anyway i can get a narrower DOF for shooting subjects about 3m away? |
I think lepidus' suggestion of a center spot filter might be what you need. Check the link he posted. |
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02/08/2006 08:24:04 AM · #12 |
Like other have said, close-up filters reduce the minimum focusing distance of a lense, hence giving greater magnification ratio (macro). But, you won't be able to focus to infinity with a close-up filter attached to a lense; I sure can't with a Canon 500D close-up filter on Nikkor 80-200mm. Although I can't tell you precisely, the maximum focusing distance is greatly reduce; you won't be able to focus to 2-3 meters like you are looking for.
The only way to reduce DOF is like it as been stated in point 1 and 2 in above reply. The third parameter is focal length; using a longer focal length, all else being equal (focusing distance and aperture), the DOF will be shallower. However, longer focal length also means narrower field of view.
Message edited by author 2006-02-08 08:25:46. |
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